Don't let the batteries go dead on your camera, Bob. Seems to me anyway that if there isn't a change made in this one, you will be back at some time and posting a picture reminiscent of a couple of others you've posted in the past.
#109361 - 10/14/0503:17 PMRe: Sheet Metal Screw For Neutral!
stamcon- I believe that the browning that makes that right hand grounded conductor look cooked is anti-oxident gel, you can see a little of the same thing on the left hand conductor as well, on the bare wire right above the lug
#109364 - 10/14/0511:01 PMRe: Sheet Metal Screw For Neutral!
Stuck at work on Saturday, so here is the 1999 NFPA 72
1-188.8.131.52 Connections to the light and power service SHALL be on a dedicated branch circuit(s). The circuit(s) and connections shall be mechanically protected. Circuit disconnecting means SHALL have a red marking shall be accessible only to authorized personnel, an shall be identified as FIRE ALARM CIRCUIT CONTROL. The location of the circuit disconnecting means shall be permanently identified at the fire alarm control unit.
#109368 - 10/15/0501:13 PMRe: Sheet Metal Screw For Neutral!
Nice cite, George. Anybody live where NFPA 72 has been adopted?
As for the sheet metal screw- where's the violation? Doesn't the NEC only address ground screws?
Allright, hold your horses. Hackwork is hackwork. Just pointing out the weaknesses of the code!
I think we went down a blind alley with the "sheet metal screw" provision. If nothing else, it sets the stage for a conflict with 110.14(A). How about a general provision that connectors will be used as designed? The "sheet metal screw" issue came up, IMO, not because of the screw itself, but because the screws were being used improperly (too large of a hole, etc). Improper use will make any fastener fail.
Meanwhile, back to the pic. Just what is the screw attached to? Are we inadvertantly bonding the neutral to the case with it?